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Finding the Fourth Proportional to 65,890.80, 98,875.56 and 60,530.95

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Solution

The fourth proportional to 65,890.80, 98,875.56 and 60,530.95 is: 90,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890.80 : 98,875.56 = 60,530.95 : x
  2. Step 2: Convert to fraction form
    65,890.80/98,875.56 = 60,530.95/x
  3. Step 3: Cross multiply
    65,890.80x = 98,875.56 × 60,530.95
  4. Step 4: Simplify right side
    65,890.80x = 5,985,031,202.75
  5. Step 5: Solve for x
    x = 5,985,031,202.75/65,890.80
  6. Step 6: Final answer
    x = 90,832.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.